REVERBERATING ULTRASONIC DELAY LINE Russian patent published in 2001 - IPC

FIELD: radio engineering; delay lines built around low-resistance oriented cadmium sulfide monocrystal. SUBSTANCE: delay line that provides for low-frequency light modulation of output signals by means of light source built in line casing and supplied with low-frequency modulating voltage may be manufactured in the form of hybrid integrated circuit. It has sound conductor whose working face mounts piezoelectric diffusion layer. Opposing face has maximal-area reflecting surface. Both faces are covered with conducting surface made of silver; non-silvered face is illuminated by modulating light source. EFFECT: enlarged passband, reduced attenuation, small size, provision for low- frequency internal modulation. 2 cl, 3 dwg